Thermodynamic assessment of geothermal energy use in hydrogen production

WOS: 000265473900009In this study, geothermal-based hydrogen production methods, and their technologies and application possibilities are discussed in detail. A high-temperature electrolysis (HTE) process coupled with and powered by a geothermal source is considered for a case study, and its thermodynamic analysis through energy and exergy is conducted for performance evaluation purposes. In this regard, overall energy and exergy efficiencies of the geothermal-based hydrogen production process for this HTE are found to be 87% and 86%, respectively. (C) 2009 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.Ege UniversityEge University; Aksaray UniversityAksaray University; University of Ontario Institute of Technology; Natural Sciences and Engineering Research Council of CanadaNatural Sciences and Engineering Research Council of CanadaThe authors gratefully acknowledge the support provided by Ege University, Aksaray University, University of Ontario Institute of Technology and the Natural Sciences and Engineering Research Council of Canada